Kazuhiro no Sofu

This grandfather, who makes his home in Aomori, took on the responsibility of raising Kazuhiro after his parents abandoned him. Naturally easygoing and remarkably perceptive, he saw through Mary's true identity as a fairy upon their very first meeting, and remained entirely unfazed by the fact that his grandson travels back and forth to another world. He welcomed Mary with warmth and expressed his gratitude to her for bringing color and richness to Kazuhiro's life, making him an essential elder figure who watches over the main characters.